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# ISAT Mathematics Review - PowerPoint PPT Presentation

ISAT Mathematics Review. Area. What is the area of the triangle pictured below? 18 in² 6 in² 9 in² 12 in². *Remember area of a triangle is 1/2 xbxh* Answer: c. 9 in² A=(1/2)x3x6=9. *Remember area of a RECTANGLE is bxh * Answer: d. 21 in ² A=7x3= 21 in ².

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### ISAT Mathematics Review

What is the area of the triangle pictured below?

• 18 in²

• 6 in²

• 9 in²

• 12 in²

*Remember area of a triangle is 1/2xbxh*

A=(1/2)x3x6=9

*Rememberarea of a RECTANGLE is bxh*

A=7x3= 21 in²

What is the area of the rectangle below?

20 in²

17 in²

10 in²

21 in²

AREA

7

3

• What is the area of this square?

• 32 cm²

• 16cm²

• 64cm²

• 48 cm²

• Rememberarea of a SQUARE is simply sxs

• A= 8x8= 64 cm²

8

8

Remember perimeter of a polygon is the sum of the sides

P= 8+5+6+4+1+4= 28ft

What is the perimeter of the figure below?

26 ft

18 ft

23 ft

28 ft

Perimeter

8 ft

5 ft

6 ft

?

?

4 ft

Remember perimeter of a square is 4 x side length

Or in other words, Perimeter of a square =s+s+s+s

P= 4 x 10 = 40 m

What is the perimeter of this square?

a.100 m

b. 20 m

c. 40 m

d. 50 m

Perimeter

10 m

Mean, Median, and Mode

• Mean is normal average

Add all of the data together

(90+87+95+96+93+88+88)=637

Divide by number of things you added together

637/7=91

Beth recorded the highest temperature for seven days

90, 87, 95, 96, 93, 88, 88

What is the mean (average) temperature?

• 88

• 90

• 91

• 96

Mean, Median, Mode

• Median is the middle number of the set

• Good strategy:

• Write your data in order from smallest to largest

87, 88, 88, 90, 93, 95, 96

• What number is in the middle? 90

Beth recorded the highest temperature for seven days

90, 87, 95, 96, 93, 88, 88

What is the Median of the temperatures?

• 88

• 90

• 91

• 96

Mean, Median, Mode

• Mode is the number that is repeated most often!

• 88 is the only temperature that occurs more than once

Beth recorded the highest temperature for seven days

90, 87, 95, 96, 93, 88, 88

What is the mode of the temperatures?

• 88

• 90

• 91

• 96

Think hard and do your best!