Isosceles Triangles in the Coordinate Plane

If a triangle with vertices of (-3,0), (0,3), (3,0), classify it by its sides.

• Isosceles

• Scalene

• Equilateral

• Obtuse

Tags

CCSS.4.G.A.2

Select the graph that represents an isosceles right triangle with leg length p in the most convenient way.

• 
• 
• 
• 

Tags

CCSS.6.G.A.3

Write a plan for the proof. Given Coordinates of vertices of △OPM and △ONM Prove △OPM and △ONM are isosceles triangles

• Find the lengths of OP, PM, MN, NO and OM to show that △OMP≅△OMN by the SSS Congruence Theorem.

• Find the lengths of OP, PM, MN, and NO to show that OP ≅ PM and MN ≅ NO.

The two triangles are isosceles, what is the area? 

• 42 square feet

• 45 feet

• 45 ft²

• 28 ft²

Tags

CCSS.6.G.A.1

Find the perimeter of this triangle.

• 12 in

• 22 in

• 18 in

• 24 in

Tags

CCSS.3.MD.D.8

Triangle ABC has vertices A(2, 5), B(5, 2), and C(2, -1). Classify triangle ABC.

• acute

• isosceles

• equilateral

• scalene

Tags

CCSS.4.G.A.2

Determine the coordinates of Q.

Tags

CCSS.HSG.GPE.B.6

Mr. Lopez planted a pine tree in his backyard that was 4 feet wide at the base and 5 feet tall. Prove that ΔABC is an isosceles triangle by using the Distance Formula to find AB and BC?

• sqrt12

• sqrt29

• sqrt21

• sqrt20

Tags

CCSS.HSG.CO.B.7

Given the coordinates, classify ΔQRT by its sides

• Equilateral

• Isosceles

• Obtuse

• Scalene

Answer explanation

Remember to use the distance formula for the three sides of the triangle to determine the length.

Tags

CCSS.4.G.A.2