0
Add your answer:
Earn +20 pts
In triangle pqr qx perpendicular pr and py perpendicular qr. if pq10cm qr8cm and pr5.6cm find the length of py where qx 7.2cm?
There is a problem with your question: If pq = 10 cm, qr = 8 cm and pr = 5.6 cm then if qx is perpendicular to pr through q it does NOT equal 7.2 cm; it is approx 8.0 cm: Let X be the distance px, then xr = 5.6 - X Using Pythagoras: In pxq: 10² = qx² + X² → qx² = 10² - X² In rxq: 8² = qx² + (5.6 - X)² → qx² = 8² - (5.6 - X)² → 10² - X² = 8² - (5.6 - X)² → 10² - X² = 8² - 5.6² + 2×5.6×X - X² → 2×5.6×X = 10² - 8² + 5.6² → X = (10² - 8² + 5.6²)/(2×5.6) → qx² = 10² - ( (10² - 8² + 5.6²)/(2×5.6) )² → qx = √(10² - ( (10² - 8² + 5.6²)/(2×5.6) )²) ≈ 7.989265 cm ≈ 8.0 cm Similarly, for py: py = √(10² - ( (10² - 5.6² + 8²)/(2×8) )²) ≈ 5.59248 cm ≈ 5.6 cm The obtuse triangle has angles: qpr ≈ 53°, prq ≈ 93°, rqp ≈ 34°; the perpendiculars qx and py lie outside the triangle; angle prq ≈ 93° which is not far off a right angle making sides pr and qr approximately perpendicular, and shows that the perpendiculars to the sides next to it (ie the perpendiculars to pr and qr) will be approximately equal to the lengths of the other side (next to it, ie length of perpendicular to pr will be approx qr, and the length of the perpendicular to qr will be approx pr).
What is the size of a 4R photo?
4R size is 4" × 6"; 10 cm x 15 cm Other photographic print sizes are 3R (3½" × 5"; 9 cm x 13 cm), 4D (4½" × 6"), the 5R (5" × 7"; 13 cm x 18 cm) and 6R (6" × 8"; double the 4R). The print photo size 8R (8" × 10"; 20 cm x 25 cm) is also well known.
How do you convert 1 cm3 into dm3?
Since, 10 cm = 1 dm , 10 cm x 10 cm x 10 cm = 1 dm x 1 dm x 1 dm , Then, 1000 cm^3 = 1 dm^3
What is the volume of a box that is 10 cm x 5 cm x 40 cm?
Vol = 10 cm * 5 cm * 40 cm = 2,000 cm3
What is the circumference of an 8 cm circle?
The circumference of a circle is given by 2 X pi X radius Thus, the circumference of an 8 cm circle is 2 X 3.14 X 8 = 50.24 cm
What size is an 8 x 10 photo in cms?
8 in = 20.32 cm 10 in = 25.4 cm
A soup can has a diameter of 8 cm and height of 10 cm how man square centimeters are needed for label?
A = (Pi x D) x H A = (3.1416 x 8 cm) x 10 cm A = 251.3274 cm2
What is 10 times longer than 8cm?
8 cm x 10 = 80 cm.
What is the volume of a carton that measures 10 cm by 8 cm by 8 cm?
The volume of a carton (or rectangular prism) is width x length x height, so in this case, the volume is 10x8x8 = 640 cubic centimeters.
How many millilmeters in 8 cm?
80mm (cm x 10 = mm)
In triangle pqr qx perpendicular pr and py perpendicular qr. if pq10cm qr8cm and pr5.6cm find the length of py where qx 7.2cm?
There is a problem with your question: If pq = 10 cm, qr = 8 cm and pr = 5.6 cm then if qx is perpendicular to pr through q it does NOT equal 7.2 cm; it is approx 8.0 cm: Let X be the distance px, then xr = 5.6 - X Using Pythagoras: In pxq: 10² = qx² + X² → qx² = 10² - X² In rxq: 8² = qx² + (5.6 - X)² → qx² = 8² - (5.6 - X)² → 10² - X² = 8² - (5.6 - X)² → 10² - X² = 8² - 5.6² + 2×5.6×X - X² → 2×5.6×X = 10² - 8² + 5.6² → X = (10² - 8² + 5.6²)/(2×5.6) → qx² = 10² - ( (10² - 8² + 5.6²)/(2×5.6) )² → qx = √(10² - ( (10² - 8² + 5.6²)/(2×5.6) )²) ≈ 7.989265 cm ≈ 8.0 cm Similarly, for py: py = √(10² - ( (10² - 5.6² + 8²)/(2×8) )²) ≈ 5.59248 cm ≈ 5.6 cm The obtuse triangle has angles: qpr ≈ 53°, prq ≈ 93°, rqp ≈ 34°; the perpendiculars qx and py lie outside the triangle; angle prq ≈ 93° which is not far off a right angle making sides pr and qr approximately perpendicular, and shows that the perpendiculars to the sides next to it (ie the perpendiculars to pr and qr) will be approximately equal to the lengths of the other side (next to it, ie length of perpendicular to pr will be approx qr, and the length of the perpendicular to qr will be approx pr).
What is 8 x 10 inches in cm?
Well honey, 8 x 10 inches is 20.32 x 25.4 cm. Just remember, when it comes to measurements, it's all about the conversion game. Hope that helps, darling!
How much concrete is needed to pour a slab 6 meters by 8 meters by 10 cm?
10 cm = 0.1 meterThe volume of the slab is (6 x 8 x 0.1) = 4.8 cubic meters
What is 8 feet x 16feet into centimeters?
1 ft = 30.48 cm (exactly) ⇒ 8 ft x 16 ft = (8 x 30.48) cm x (16 x 30.48) cm = 243.84 cm x 487.68 cm
How many liters does it take to fill a 10 cm x 10 cm x 10 cm?
1 litre.
What is the size of a 4R photo?
4R size is 4" × 6"; 10 cm x 15 cm Other photographic print sizes are 3R (3½" × 5"; 9 cm x 13 cm), 4D (4½" × 6"), the 5R (5" × 7"; 13 cm x 18 cm) and 6R (6" × 8"; double the 4R). The print photo size 8R (8" × 10"; 20 cm x 25 cm) is also well known.
What is the mass of paraffin if it's density is 0.8 g its volume is 10 cm?
The mass of the paraffin can be calculated using the formula: mass = density x volume. Plugging in the values, mass = 0.8 g/cm³ x 10 cm³ = 8 grams. Therefore, the mass of the paraffin is 8 grams.
