Geometry Practice Test: answer key

Every answer, with a link to its step-by-step solution

#	Answer	Lesson	Solution
1	B x = 70	Angle facts	Solved step by step
2	x = 18	Complementary and supplementary angles	Solved step by step
3	x = 20	Exterior angle of a triangle	Solved step by step
4	300°	Three-figure bearings and back bearings	Solved step by step
5	r = 5	Work backwards	Solved step by step
6	angle = 120°	Arc length, sector area and perimeter as a part of the circle	Solved step by step
7	S = 54 cm²	Volume and surface area	Solved step by step
8	A Yes	Is it a right triangle?	Solved step by step
9	c = 2.5√2	Special right triangles	Solved step by step
10	x = 15	Right triangle with its height to the hypotenuse	Solved step by step
11	A Parallel	Are the lines parallel?	Solved step by step
12	P = 21 m	Parallelogram and trapezoid	Solved step by step
13	A = 48 m²	Composite shapes	Solved step by step
14	P ≈ 14.28 m	More composite shapes	Solved step by step
15	V ≈ 33.33	Pyramids	Solved step by step
16	C 108	Nets and surface area	Solved step by step
17	78.5	Cross sections	Solved step by step
18	326.56	Volume of a frustum	Solved step by step
19	S ≈ 12.56 m²	Spheres and hemispheres	Solved step by step
20	128	Similar shapes and solids	Solved step by step
21	2 km	Scale drawings and maps	Solved step by step
22	x = 6 m	Shadow problems	Solved step by step
23	31.0°	Angles of elevation and depression	Solved step by step
24	43.3°	Trigonometry in 3D	Solved step by step
25	C 45	One trig ratio from another	Solved step by step
26	M = (1, −2)	Midpoint	Solved step by step
27	y = 65x − 35	Perpendicular bisector of a segment	Solved step by step
28	D x = 90	Angles in a polygon	Solved step by step
29	sides = 18	Exterior angles	Solved step by step
30	b ≈ 4.5	Chords	Solved step by step
31	70°	Congruent triangles	Solved step by step
32	x = 30	Isosceles triangles	Solved step by step
33	x = 11	Isosceles triangles with sides, equilateral triangles	Solved step by step
34	9	Medians and the centroid	Solved step by step
35	x = 4	Tangents	Solved step by step
36	A (−2, 4)	Translations	Solved step by step
37	(−3, 2)	Reflections	Solved step by step
38	(4, 0)	Rotation about a point	Solved step by step
39	A (−4, 2)	Dilations about the origin	Solved step by step
40	(6, −2)	Glide reflections	Solved step by step

Grade

Count your right answers and divide by the number of questions: A 90% or more, B 80%, C 70%, D 60%, F below 60%.