Tuesday, March 20th

WARM UP1. Solve for x

2. Find the Surface Area and volume

9 in.

1 211 127 5

x

Corny of Joke of the Day

What runs around the

yard but never moves?

A FENCE

March Madness Grade 6

March MadnessMath CRCT: Grade 6Monday, March 19

March Madness Grade 6

1. Which of the letters below has only one line of symmetry?

O X F A

A. Letter OB. Letter XC. Letter FD. Letter A

March Madness Grade 6

2. In a town, a middle school has 45 classrooms. This amount is 30% of all the classrooms in the entire town. How many total classrooms are in the town?

A. 67B. 75

C. 135 D. 150

March Madness Grade 6

March MadnessMath CRCT: Grade 6Tuesday, March 20

March Madness Grade 6

3. Which two letters in the word CAVE each have a vertical line of symmetry?

A. AVB. AEC. VED. CV

March Madness Grade 6

4. What value for x makes x + = true?

123

243

A. 2 B. 2 C. 2 D. 3 13

23

FORMULA SHEET

v=Bh Rectangular Prism: l x w

Triangular Prism:

π 𝒓 ²Triangular Prism:𝒃𝒉÷𝟐

What is It?!?!Volume- The number of cubic units needed to ____________ a

space

Volume is measured in:

FILL

CUBIC UNITS

Name the geometric solids that belong to each net.

Weekly Review Answers

HomeworkAnswers

Goal for todayVolume

Pyramids

Discovery Can you discover the rule?

Pyramid and Conev=1/3Bh

What does this formula look like?

Important ComparisonsA Pyramid is 1/3

the size of a Prism with the

same Base.

A Cone is 1/3 the size of a Cylinder with

the same Base.

v=1/3Bh B= Base

Base depends on what kind of base the shape has:Rectangular Pyramid: l x w Triangular Pyramid: 1/2bh

Pyramid and Cone

Find the volume of the pyramid to the nearest tenth. Estimate to check whether the answer is reasonable.

V = 13 Bh Use the formula.

B = 5 · 7 = 35 Find the area of the rectangular base.

V = 13 · 35 · 4 Substitute for B and h.

V ≈ 46.7 ft3

Estimate

5 ft 7 ft

4 ft

Multiply.

V = 13 · 30 · 5 Round the measurements.

V = 50 ft3 The answer is reasonable.

#1

Find the volume of the cone to the nearest tenth. Use 3 for . Estimate to check whether the answer is reasonable.

V = 13 Bh

V 13 · 78.5 · 6

V 157 yd3

Estimate

Use the formula. The base is a circle so B = · r2 3.14 · 52 78.5.

Substitute for B and h.

Multiply.

13

· ≈ 1.13V ≈ · 52 · 6

150 yd3 The answer is reasonable.

Practice Problems