Classify the following triangle as acute, obtuse, or right.

triangle angles:

is it obtuse?

Acute triangle

Step-by-step explanation:

An acute triangle is one in which all its angles measure less than 90 °.

The triangle of the figure has the angles: 51 °, 51 °, 78 °

Which are all less than 90 °, thus it is an acute triangle.

We discard options A.Obtuse and B.Right because an obtuse triangle has an angle of more than 90 °, and a right triangle has an angle of exactly 90 °, and none of these definitions match the triangle in the image.

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )