Answer:
Kevin was 2 times as old as Gabriela 12 years ago then Kevin was 6 times as old as Gabriela so now Kevin should be 36 years old because if you divide 12 by 2 it's gonna give you 6 so then he was 6 times old as Gabriela so now he's 36 years old.
Step-by-step explanation:
57 divided by 100 and 62 divided by 100
Answer:
Use the app photomath, it almost always finds answers for worksheets.
Step-by-step explanation:
Answer:
∠C = 106.7°, ∠D = 73.3°, CD = 104.4
Step-by-step explanation:
As shown in the diagram attached, let a point E be made on line BD.
Hence, BE = 130 m
BE + ED = BD
ED = BD - BE
ED = 160 m - 130 m = 30 m
Also, CE = 100 m
Using Pythagoras theorem in triangle CDE:
CD² = CE² + ED²
CD² = 100² + 30²
CD² = 10000 + 900 = 10900
CD = √10900
CD = 104.4
Using sine rule in triangle CDE:
In trapezoid ABCD, the sum of angles in a quadralateral is 360°, hence:
∠A + ∠B + ∠C + ∠D = 360
90 + 90 + ∠C + 73.3 = 360
∠C + 253.3 = 360
∠C = 360 - 253.3
∠C = 106.7
60/360*pi*6^2=6pi. (Area of a sector)
1/2*6*6*sin(60)=9root3. (Area of a triangle)
So it must be the top one