Which polynomial is in standard form?
2xy2 + 3x3y4 - 4x4y5 + 9x5y6
8x5 - 5y4 - 2xy5 + xły
XBy2-3x?y-9x4y + 11x
5x?y2 +7x6y5 - 14x3y7 +51x?y9

b

step-by-step explanation:

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.

i think the answer is 90 hope this

cool stunts are flippin i think

sitting on a chair

and using stick feet