From the given information and transposing the relevant formulae its area works out as 200*sin(50)*sin(60)*sin(70) = 124.6810383 or about 125 square cm
There is probably a trick that I don't know (can't think of at the moment), but you can use the sine rule and sine ratio: The third angle is 180° - (62° + 48°) = 70° and is opposite the side of length 1.8cm. The side opposite the 48° can be found using the sine rule: a/sin A = b/sin B → a = b × sin A/sin B = 1.8 cm × sin48° / sin 70° The height can now be found using the sine ratio on the 62° angle as the side just found is the hypotenuse of that triangle: sine = opp/hyp → opp = hyp × sine → height = (1.8 cm × sin48° / sin 70°) × sin 62° → height = 1.8 × sin 48° × sin 62° / sin 70° cm ≈ 1.3 cm
The regular nonagon will consist of 9 congruent isosceles triangles with base angles of 70 degrees and an apex angle of 40 degrees. Its 2 equal sides: square root of 385.6367484*2/sin(40)*9 = 11.6952176 cm Its base: sin(40)*11.6952176/sin(70) = 8 cm Perimeter: 9*8 = 72 cm
Sin Sin Sin was created on 2006-05-22.
cos*cot + sin = cos*cos/sin + sin = cos2/sin + sin = (cos2 + sin2)/sin = 1/sin = cosec
sin 70 deg. = 0.9397
sin(70 deg) = 0.9397 approx.
cot 70 + 4 cos 70 = cos 70 / sin 70 + 4 cos 70 = cos 70 (1/sin 70 + 4) = cos 70 (csc 70 + 4) Numerical answer varies, depending on whether 70 is in degrees, radians, or grads.
A nonagon is a nine-sided polygon. The area of a regular polygon is:A = (n/4)(s^2)[cos (180° /n)]/[sin (180° /n)]So the area of the nonagon with side 16 (144/9) is:A = (9/4)(16^2)[[cos(180°/9)]/[sin (180°/9)]]= (2.25)(256)[(cos 20°)/(sin 20°)]A ≈ 1,582.55 ft^2 If you don't know the formula of the area of a polygon, you can find its area by multiplying by 9 the area of one of the 9 congruent isosceles triangles that are formed by connecting the center of the polygon with its vertices. But for this you need to find the altitude and the length of the side (which is the radius of the circumscribed circle) of that triangle such as:we know the length base which is 16 ft (144/9), the angle base which is 70 (140/2), and the vertex angle which is 40 (360°/9 or 180° - 140°). By using the Law of Sines we can find the length of r. So,r/sin 70° = 16/sin 40° multiply by sin 70° to both sides;r = (16 sin 70°)/sin 40° sin 70 = altitude/radiusaltitude = (sin 70)(radius) = (Sin 70)[(16 sin 70)/sin 40]altitude = [16(sin 70)^2]/sin 40Thus the area of this nonagon is:A = 9[(1/2)(bh)] where b = 16 and h = [16(sin 70)^2]/sin 40A = (4.5)(16) [[16(sin 70)^2]/sin 40] A ≈ 1,582.55 ft^2
From the given information and transposing the relevant formulae its area works out as 200*sin(50)*sin(60)*sin(70) = 124.6810383 or about 125 square cm
There is probably a trick that I don't know (can't think of at the moment), but you can use the sine rule and sine ratio: The third angle is 180° - (62° + 48°) = 70° and is opposite the side of length 1.8cm. The side opposite the 48° can be found using the sine rule: a/sin A = b/sin B → a = b × sin A/sin B = 1.8 cm × sin48° / sin 70° The height can now be found using the sine ratio on the 62° angle as the side just found is the hypotenuse of that triangle: sine = opp/hyp → opp = hyp × sine → height = (1.8 cm × sin48° / sin 70°) × sin 62° → height = 1.8 × sin 48° × sin 62° / sin 70° cm ≈ 1.3 cm
The regular nonagon will consist of 9 congruent isosceles triangles with base angles of 70 degrees and an apex angle of 40 degrees. Its 2 equal sides: square root of 385.6367484*2/sin(40)*9 = 11.6952176 cm Its base: sin(40)*11.6952176/sin(70) = 8 cm Perimeter: 9*8 = 72 cm
sin (38) = Altitude / 70Altitude = 70 * sin (38) = 70 * 0.61566 = 43.1 meters(rounded).Probably not quite that high, because no matter what Joanna does, there's no way thekite string is going to perfectly straight, between wind and gravity. So the hypotenuseis actually something less than 70 meters.
11-11 En mi cuadra nada cuadra - 2013 Una verdad que lo dejara sin el amor 1-70 was released on: USA: 6 September 2013
cos70=sin20 so angle is 20, because cosA=sin(90-A)
Sin Sin Sin was created on 2006-05-22.
cos*cot + sin = cos*cos/sin + sin = cos2/sin + sin = (cos2 + sin2)/sin = 1/sin = cosec