Intermediate Test Prep Math 8 (Grade 7) Missing Angles in a Quadrilateral

Find the missing angle measures of the given quadrilaterals. Click on your answer to see if you are correct.

1) In this trapezoid, the acute angles measure 80º each. What is the angle measure of each obtuse angle?	A. 200º B. 100º C. 80º D. 360º
2) The obtuse angles in this parallelogram measure 146º each. What is the angle measure of each acute angle?	A. 34º B. 292º C. 214º D. 68º
3) The obtuse angle measures of this trapezium are 91º and 154º. If one of the acute angles measures 75º, what is the measure of the fourth angle?	A. 320º B. 60º C. 90º D. 40º
4) The obtuse angles of this rhombus each measure 115º. What is the angle measure of each acute angle?	A. 65º B. 115º C. 230º D. 57.5º
5) If the obtuse angle of this trapezoid measures 136º, what is the measure of the acute angle?	A. 90º B. 44º C. 224º D. 36º

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