Math 101 Exam 3 Study Guide

Front

Back

35%

Front

If ∠A and ∠B are complementary angles and the m∠A = 27.6°, what is m∠B?

Back

62.4°

Front

Calculate the surface area of the rectangular prism with dimensions 11 cm, 5 cm, and 3 cm.

Back

214 cm²

Front

Using the simple interest formula, if p = 2700, t = 100 days, I = 37.50, what is r?

Back

5%

Front

What is the surface area of the sphere with a radius of 5 yd? Use π = 3.14.

Back

314 yd²

Front

Define complementary angles.

Back

Two angles whose measures add up to 90°.

Front

What is the formula for the surface area of a rectangular prism?

Back

Surface Area = 2(lw + lh + wh) where l = length, w = width, h = height.

Front

What is the formula for the surface area of a sphere?

Back

Surface Area = 4πr² where r = radius.

Front

How do you convert a fraction to a percent?

Back

Multiply the fraction by 100 and add a percent sign.

Front

What is the formula for simple interest?

Back

I = prt where I = interest, p = principal, r = rate, t = time.