In an isosceles triangle ABC, angle B is obtuse. Height BD is 6 cm If the perimeter of triangle
| February 5, 2021 | education
In an isosceles triangle ABC, angle B is obtuse. Height BD is 6 cm If the perimeter of triangle ABC is 22 cm, then what is triangle ABD
Height BD divided triangle ABC into two equal triangles ABD and CBD. Let’s write down the perimeter of triangle ABC, through the perimeter of triangle ABD and the height of BD.
P ABC = 2 * P ABD – 2 * BD.
P ABD = (P ABC + 2BD) / 2 = (22 + 12) / 2 = 34/2 = 17 (cm).
Answer: The perimeter of triangle ABD is 17 cm.
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