In quadrant I, when sin angle is 1/2, cos angle is (sqrt3)/2
7 times 0.45 divided by 5 and you get 0.63
Answer:Yes it is proportional
Y=1/2x+7 because you flip the sign and the numbers on the fraction for the slope then solve for the y-not
Answer:
Length of side of rhombus is
Step-by-step explanation:
Given Rhombus ADEF is inscribed into a triangle ABC so that they share angle A and the vertex E lies on the side BC. We have to find the length of side of rhombus.
It is also given that AB=a and AC=b
Let side of rhombus is x.
In ΔCEF and ΔCBA
∠CEF=∠CBA (∵Corresponding angles)
∠CFE=∠CAB (∵Corresponding angles)
By AA similarity rule, ΔCEF~ΔCBA
∴ their sides are in proportion

⇒ 
⇒ 
⇒ 
⇒ 
Hence, length of side of rhombus is