If one angle of a triangle is 90 degrees then the other two add to 90 degrees write the to prove statement

➷ There is a rule : angles in a triangle will always total to 180 degrees.

180 - 90 = 90

As you can see via the calculation above, the other two angles would have to total to 90 degrees to fit this rule.

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seems like d

step-by-step explanation:

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.