Answer:
0.96
Step-by-step explanation:
Answer:
45.3
Step-by-step explanation:
Triangle ADB has angles BAD, D, and B.
Triangle CDA has angles C, D, and CAD.
The figure shows that angle B of triangle ADB and angle CAD of triangle CDA are congruent.
Angle D is an angle of both triangles, and it is congruent to itself.
By AA Similarity triangles ADB and CDA are similar.
This makes the ratios of the lengths of corresponding sides equal.
BD/AD = AB/AC
40.8/27.2 = x/30.2
27.2x = 40.8 × 30.2
x = 45.3
It's already at its simplest form. The numerator and denominator do not share a common factor in order for it to be reduced
Hello,
Answer B
A=(0,4)
B=(4,1)
y-4=(1-4)/(4-0)(x-0)
==>y=-3/4 x +4
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