8th Grade ILEARN Review Day 8

Which one of the following could be a lengths of the sides of a right triangle?

• 1, 2, 3

• 2, 3, 4

• 3, 4, 5

• 4, 5, 6

A triangle has sides of 8 cm and 15 cm long, with a 90-degree angle between them. What is the length of the third side?

• 7 cm

• 17 cm

• 23 cm

• 289 cm

The Pythagorean Theorem is
c² = a² - b²  

• false
• true

Find h

• 35.60
• 35.00
• 35.71
• 61.03

Do the segment lengths 15, 12, and 9 form a right triangle?

• Yes
• No
• Maybe
• Pythagoras

You don't need one of the numbers...

• A
• B
• C
• D

Find the distance between J and K.

• 8.2
• 7.7
• 9
• 10.2

Use the diagram and determine which equation could NOT be used to find the missing side of the triangle.

What is the perimeter of the triangle?

• 26

• 34

• 36

• 60

Rotation Rules (clockwise):

90^o rotation: (x, y)→(y, -x)

What are the coordinates for A' after a 90^⁰ rotation clockwise?

• (1, 3)

• (3, 1)

• (3, -1)

• (1, -3)