Answer:
4
Step-by-step explanation:
a+16=20
a=20-16
a=4
Answer:
Let the adjacent angles of the rhombus be 2x and 3x. We know that the sum of the measures of the adjacent angles is equal to 180°. AD = DC = 3 × 36° = 108°. Hence , the angles of the rhombus are 72° , 108° , 72° and 108°.
Step-by-step explanation:
Answer:
180
Step-by-step explanation:
calculator.
Answer:
17
Step-by-step explanation:
49-32=17
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