Free Printable Triangle Sum, Remote Exterior, Isosceles & Equilateral Practice

1.

Solve for x.

a)

$35\degree$

b)

$80\degree$

c)

$115\degree$

d)

$45\degree$

2.

Solve for x.

a)

$100\degree$

b)

$80\degree$

c)

$50\degree$

d)

$180\degree$

3.

Solve for x.

a)

$80\degree$

b)

$100\degree$

c)

$20\degree$

d)

$60\degree$

4.

Choose the coordinate for point G so that GHOST is a concave polygon.

a)

(0, 10)

b)

(2, 9)

c)

(-2, 7)

d)

(1, 4)

5.

Choose the coordinate for point D so that SOLID is a convex polygon.

a)

(-6, 1)

b)

(-6, -4)

c)

(-1, 0)

d)

(6, 6)

6.

What is the measure of angle G?

(a)

7.

What is the measure of angle A? (a)

8.

$m\angle5\ =\ x^{2\ }+\ 2x,\ m\angle2\ =\ x\ -\ 5,\ m\angle9\ =\ 10x+\ 13.\$ Solve for x and find the measure of $\angle7$ . Then classify the triangle by angles.

a)

$m\angle7\ =\ 103\degree$

Obtuse Triangle

b)

$m\angle7\ =\ 103\degree$

Acute Triangle

c)

$m\angle7\ =\ 77\degree$

Obtuse Triangle

d)

$m\angle7\ =\ 77\degree$

Acute Triangle

9.

$m\angle7\ =\ x^{2\ }-5x,\ m\angle2\ =\ 2x\ +\ 5,\ m\angle4\ =\ 6x-3.\$ Solve for x and find the measure of $\angle5$ . Then classify the triangle by angles.

a)

$m\angle5\ =\ 45\degree$

Obtuse Triangle

b)

$m\angle5\ =\ 45\degree$

Acute Triangle

c)

$m\angle5\ =\ 135\degree$

Obtuse Triangle

d)

$m\angle5\ =\ 135\degree$

Acute Triangle

10.

$\angle A\cong\angle M$

JA = 6x - 16, JM = 4x - 4, Am = 2x + 3.

Find the perimeter of the Triangle.

(Hint: Solve for x and all 3 side lengths)

(a)

11.

$\angle H\cong\angle O$

HO = 4x + 5, HT = 5x + 2, OT = 9x - 46.

Find the perimeter of the Triangle.

(Hint: Solve for x and all 3 side lengths)

(a)

Triangle Sum, Remote Exterior, Isosceles & Equilateral Practice

Total questions: 11

Worksheet time: 31mins

Similar Resources on Wayground