use the numbers 8,6 and 2 and one operation to write an expression that includes an exponent and has a value of 8

Which triangles area would be calculated using the trigonometric area formula

Answer question above and explain each step : )

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?