Given the radius of each sphere below, what is the SURFACE AREA of the red sphere? * 15 in. 20 in. Surface Area 1800 in.2

Q: 7. 3 ft 9 ft 11 ft 7.7代 10 ft

A:

Q: The sides of a rectangle are 20 in and 13 in. Find its area.

A: Consider the sides of the given rectangle. 20 in. and 13 in. The objective of the problem is to find…

Q: 165 12 yd

A: Area of sector = θ360°×πr2    ;  where θ= angle of sector.…

Q: 8 yd

A: The given radius of the circle r = 8 yd

Q: Which of the following have the same area or mean the same as 3cm 2 a. A 3-cm-by-3-cm square b. 3…

A: Given  Area =3cm^2

Q: Find the approximate area of a semicircle, with a 5 in radius? A 16 in? © 38 in? 5 in. ® 15 in? O 79…

A: Area of semicircle , A = 12πr2 ; where 'r' is the radius of the circle.

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.