ajayrose
17.09.2021 •
Mathematics
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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Ответ:
Question Below
What kind of triangle is △BCD?
Hi, There! I'm here to Help :)
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°).
Ответ:
thx
Step-by-step explanation:
ill try to sub