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The base of an isosceles triangle is 42 feet long The altitude to the base is 70 feet long What is the measure of a base angle to the nearest degree?
Call the angle v: tan v = opp/ adj = 70/21 = 3.33; tan 73 = 3.26, tan 74 = 3.48
so 73 degrees is nearest.
Check: sin73 = opp/hyp so hyp is 70/sin 73 = 70/0.956 = 73.22.
Now use Pythagoras: does 73.22 squared equal 70 squared plus 21 squared?
In whole numbers 5329 = 4900 + 441? Not quite, but good enough for Wiki!
What else can I help you with?
How do you find the measure of an angle to the nearest degree?
You can measure it. Or you can measure some other quantities (for examples, the lengths of the sides of a triangle), and calculate the angle using trigonometry.
To the nearest degree find the measure of angle b in triangle abc given measure of angle a equals 48degrees ac equals 62cm and ab equals 61cm?
67 degrees
If the side opposite a 30 degree angle in a right triangle is 12.5 meters how long is the hypotenuse rounded the answer to the nearest tenth?
The answer rounded to the nearest tenth is 25 meters.
How do you find angles of a triangle?
I cannot answer this without knowing any more information. Finding the proper dimensions of a triangle without knowing the kind of triangle cannot really be done. Because it may be an isosceles triangle (every angle is equal) or it could be a 30-60-90 triangle etc.
What is to the nearest degree the measure of a triangle whose sides measures 22 34 and 50?
Angle included by 50 and 34 = 21 degrees Angle included by 34 and 22 = 125 degrees Angle included by 22 and 50 = 34 degrees Total = 180 degrees
What is the perimeter of the isosceles triangle shown below If necessary round to the nearest hundredth.?
I don't see any isosceles triangle below.In general, the perimeter is the sum of the lengths of all sides. Note that in an isosceles triangle, two of the three sides have the same length.
If the hypotenuse of an isosceles triangle is 16cm the other sides would be 11.31541 rounded tothe nearest tenth 11.3cm?
Yes
How do you do it if its area is 28 and the base has a length of 3 more than the altitude?
This is not solvable in integers for a triangle. The solution to the nearest thousandth is: base = 9.132 and altitude = 6.132 Half base = 4.566 x alt 6.132 = 27.999, again to the nearest thousandth.
To the nearest tenth what is the length of the hypotenuse of an isosceles right triangle with a leg of 12.1 inches?
Using Pythagoras' theorem the length of the hypotenuse is 17.1 inches
The perimeter of an equilateral triangle is 32centimeters find the length of an altitude of the triagle to the nearest tenth of a centimeter?
Since an equilateral triangle has three congruent sides (and 3 congruent angles, each of 60⁰), the length of each side is 32/3 cm. If we draw one of the altitudes of the triangle, then a right triangle is formed where the side of a triangle is the hypotenuse, and the altitude is opposite to a 60 degrees angle. So we have, sin 60⁰ = altitude/(32/3 cm) (multiply by 32/3 cm to both sides) (32/3 cm)sin 60⁰ = altitude 9.2 cm = altitude
How do you find the measure of an angle to the nearest degree?
You can measure it. Or you can measure some other quantities (for examples, the lengths of the sides of a triangle), and calculate the angle using trigonometry.
Isosceles triangle with legs each 9 feet long and base 12 feet long . what is area?
Drop a perpendicular from apex to midpoint of base. You now have two Pythagorean triangles with hypotenuse 9 feet and one side 6 feet. Altitude = sqrt (81 - 36) = 3 root 5, so area of original triangle is 6 x 3 root 5 = 18 root 5 = 40.25 sq feet to the nearest hundredth
The legs of a right triangle measure 7m and 9m what is the length of its hypotenuse to the nearest tenth of a meter?
The hypotenuse measures 11.4 meters in length.
To the nearest degree find the measure of angle b in triangle abc given measure of angle a equals 48degrees ac equals 62cm and ab equals 61cm?
67 degrees
A triangle has a base of 7 ft and an altitude of 15 ft Find its area to the nearest tenth?
Area of a triangle = (base x Height)/2 = 7 ft x 15 ft/2 = 105/2 sq ft= 52.5 sq ft
What is the area and perimeter of a trangle that has equal sides when its apex angle of 15.75 degrees is opposite to base 5.75 cm?
Using trigonometry the area of the isosceles triangle 60 square cm and its perimeter is 48 cm both rounded to the nearest integer
In triangle DEF DE equals 5 and measure of angle D is 55 degree's find Fe to the nearest tenth?
in triangle def side de equals 5 and angle d equals 55 find fe
