Topic 8 TD Warm Up

What is the formula for Circumference of circles?

• $C\ =\ d\pi$

• $C\ =\ r\pi$

• $C\ =\frac{d}{2}\pi$

• $C\ =\ rd$

Tags

CCSS.7.G.B.4

What is the formula for the area of a circle?

• $A=\ d\pi$

• $A=\ r\pi$

• $A=\ \pi r^2$

• $A=\ \frac{d}{2}\pi$

Tags

CCSS.7.G.B.4

What is the formula for Area of a Rectangle?

• $A\ =\ \frac{l}{w}$

• $A\ =\ 2lw$

• $A\ =\ lw$

• $A\ =\ l\ +\ w$

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the formula for the area of a triangle?

• $A\ =\ \frac{b}{h}$

• $A\ =\ 2bh$

• $A\ =\ bh$

• $A\ =\ \frac{1}{2}bh$

Tags

CCSS.6.G.A.1

Vertical Angles are ....

• the same measure

• equal to 180 degrees

• equal to 90 degrees

• No relationship

Tags

CCSS.7.G.B.5

Complementary Angles are

• the same measure

• equal to 180 degrees

• equal to 90 degrees

• no relationship

Tags

CCSS.7.G.B.5

Supplementary angles are ....

• the same measure

• equal to 180 degrees

• equal to 90 degrees

• No relationship

Tags

CCSS.7.G.B.5

What is the radius of this circle?

• 12
• 6
• 24

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 1385.44
• 2142.12
• 5541.77
• 1289.12

Tags

CCSS.7.G.B.4

If my diameter is 19 inches, what is my radius?

• 38 inches
• 9.5 inches
• 59.66 inches
• 119.32 inches

Tags

CCSS.7.G.B.4