What is the product of (-6)(-7)(-1)

To find the product, we can multiply all 3 numbers.

= -6 × -7 × -1

= 42 × -1 (Anytime you multiply 2 negative numbers, it results in a positive number.)

= -42

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: