Answer: 87.5
Step-by-step explanation:
The Area formula for a Trapezium is
depicted in the two picture below.
As seen in the picture Area equals
A+B(h) all divided by 1/2 or simplistic terms 2.
A+b
A= ---------- (h)
2
So we need to plug our information in
as Depicted in the picture measurement A is first top side
And B is bottom base
so h IS the height of the figure. Its the middle line in the middle of the figure.
10+15
A= ________(7)
2
10+15=25
25*7=175
175/2=87.5
So your answer is
Area of ABCD is 87.5
Answer:
1 17/21
Step-by-step explanation:
the answer is 1 and 17 over 21
Answer:
AC = 8 cm,
AD = 3 cm and ∠ACB = ∠CDA
From figure,
∠CDA = 90°
∴ ∠ACB = ∠CDA = 90°
In right angled ∆ADC,
AC2 = AD2 + CD2
⇒ (8)2 = (3)2 + (CD)2
CD2 = 64 – 9 = 55
⇒ CD = √55 cm
In ∆CDB and ADC.
∠BDC = ∠AD [each 90°]
∠DBC = ∠DCA [each equal to 90°-∠A]
∴ ∠CDB ∼ ∆ADC
Then,
60*80/100-$10*155/100
48-$10*155/100=$58.90
Line CA is a straight line, meaning it adds up to 180°
Line BE splits the line into two supplementary angles, because when the two angles are added together they will equal 180°
Using the rule of supplementary angles, we can then make the equation 3x + 8x + 15 = 180
Now, simplify the equation by combining like terms
11x + 15 = 180
To solve, isolate x
11x + 15 = 180
11x = 165
x = 15
