40 POINTS AND WILL MARK BRAINLIEST TO CORRECT ANSWER What kind of triangle is △BCD? Explain. Triangle B C D sitting on line B D. At vertex B, angle 1 is exterior to the triangle and angle 2 is interior. Together, 1 and 2 form a straight angle. At vertex C, the interior angle measure is 70 degrees. At vertex D, the interior angle is not labeled and the exterior angle has measure 130 degrees.
Group of answer choices

Right triangle; m∠2 = 90

Isosceles triangle; m∠CDB = m∠2

Obtuse triangle; m∠CDB = 180 − 70 = 110

Acute triangle; m∠CDB = 180 − 130 = 50 and m∠2 = 180 − 70 − 50 = 60
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What kind of triangle is △BCD?

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Acute triangle; m∠CDB = 180 − 130 = 50 and m∠2 = 180 − 70 − 50 = 60

Step-by-step explanation:

Hope this helps!

An obtuse triangle is one that has an angle greater than 90°. Because all the angles in a triangle add up to 180°, the other two angles have to be acute (less than 90°).

i don't have the answer rn but go to math papa. it shows the steps and the answer. hope this : )

step-by-step explanation:

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.