10.4-10.7 Flashcard Review

Front

What is the standard form of the equation of a circle with radius 7?

Back

Front

Find the value of x if 2x + 5 = 45.

Back

x = 20

Front

What is the measure of angle PRQ if it is given that m∠PRQ = 51°?

Back

51°

Front

If x + 10 = 76, what is the value of x?

Back

x = 66

Front

What is the value of x if 3x - 6 = 120?

Back

x = 42

Front

Define the term 'circle'.

Back

A circle is a shape consisting of all points in a plane that are a fixed distance from a center point.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius.

Front

What is the area of a circle with a radius of 7?

Back

Area = πr^2 = 49π.

Front

What is the relationship between the angles in a triangle?

Back

The sum of the interior angles of a triangle is always 180°.

Front

If the angles of a triangle are 39°, 51°, and x°, what is the value of x?

Back

x = 90°.