Answer:
y ≈ 4.4 cm
Step-by-step explanation:
The image is uploaded below. From the image below you can deduce that the triangle formed is a right angle triangle. The triangle has a height of 12 cm and the base is what we are ask to find.
A right angle triangle has an opposite side , a hypotenuse and an adjacent side. From the right angle triangle below the adjacent side is y cm, the opposite side is 12 cm and the hypotenuse is x cm. The angle between the hypotenuse and the adjacent side is 70°.
Using SOHCAHTOA principle
tan 70° = opposite /adjacent
tan 70° = opposite /adjacent
tan 70° = 12/y
cross multiply
y tan 70° = 12
y = 12/tan 70°
y = 12/2.74747741945
y = 4.36764281119
y ≈ 4.4 cm
D is the answer.
LA of cube is 4(2r.2r) = 16 r^2
LA of cylinder is 2πr x 2r = 4πr^2
16 r^2 - 4πr^2 = 4r^2(4-π)
I think it is A
Step-by-step explanation:
Sin (37°) = opposite side/Hypotenuse
sin (37°) =CV/55 →CV = 55.si (37°)
CV = 55 x (0.601815)
CV= 33