Answer:
Step-by-step explanation:
see the attached figure to better understand the problem
step 1
Find the measure of the vertex angle ∠ABD of an isosceles triangle
we know that
An isosceles triangle has two equal sides and two equal angles
In this problem
----> the angles of the base are equals
Find the measure of the vertex angle ABD
------> the sum of the internal angles of a triangle is equal to 180 degrees
step 2
Find the measure of the angle ∠CBD in the equilateral triangle
we know that
A equilateral triangle has three equal sides and three equal angles
The measure of the internal angle in a equilateral triangle is equal to 60 degrees
so
step 3
Find the measure of the angle ∠ABC
we know that
---> by addition angle postulate
substitute the values
Mixed number form 1 99/100
__________________________________________
- BCD is an isosceles right triangle , right angled at D
- ABC is an equilateral triangle
❒ Sum of all angles is 180° , since it is an equilateral triangle all the three angles would be same
(Isosceles triangle)
Answer:
552.6 because 15% × 3684 = 552.6
3684 × 0.15 = 552.6
There are 6 vowels out of 10 letters in this word so
Prob( a vowel is chosen) = 6/10 or 3/5 answer
