7th Grade STAAR Reference Sheet

How do you find the circumference of a circle?

• C=TTd

• C=TTr²

• C= 2TTr

• C=bh

What is the circumference of a circle with a radius of 21 cm?

• 131.88 cm
• 121.99 cm
• 111.89 cm
• 141.89 cm

Tags

CCSS.7.G.B.4

How do you find the area of a triangle?

• A=bh

• A=bh/2

• A=1/2(b₁+b₂)h

• A=1/2bh

Area of triangle?

• 17 units²
• 20 units²
• 10 units²
• 16 units²

Tags

CCSS.6.G.A.1

How do you find the area of a rectangle?

• A=1/2bh

• A=bh/2

• A=bh

• A=TTr²

Find the AREA of this figure.

• 160 square feet
• 160 feet
• abcdefghijklmnopqr
  stuvwxyz
• 1600 feet

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the formula for finding the area of a trapezoid?

• A=1/2(b₁+b₂)h

• A=bh

• A=1/2bh

• A=TTr²

Find the area of the figure

• 30 cm²
• 44 cm²
• 88 cm²
• 22 cm²

Tags

CCSS.6.G.A.1

If the radius of a circle is 7, what is the diameter?

• 3.5

• 14

• 7

• 21

What is the radius of this circle?

• 18
• 10
• 9
• 8

Tags

CCSS.7.G.B.4