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kenny6666 [7]
3 years ago
8

Help pleaseeeeeeeeeee

Mathematics
1 answer:
sesenic [268]3 years ago
7 0
4/10 and 3/10 are the answers
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Given: ABCD is a trapezoid, AC ⊥ CD AB = CD, AC=the square root of 75 , AB = 5 Find: AABCD
Ugo [173]

In this attached picture according to the conditions of the problem we have an isosceles trapezoid and since we know that legs are equal (AD=BC=5 cm), we have to calculate bases and height in order to find the area. Working with the triangle BCD, we apply Pythagoras theorem and find that CD = \sqrt{75+25} = 10 cm. Since BDC is a right triangle, applying theorem for the area of triangles, we find that \frac{1}{2} * BF =  \frac{1}{2} * 5 * \sqrt{75} and BF= 0.5\sqrt{75}. Since ABCD is an isosceles trapezoid, triangles ADE and BFC are congruent with Angle Side Angle theorem. Then, DE=FC and with the help of Pythagoras theorem, DE=FC=2.5 cm. Then, AB=EF=5 cm and the area of the trapezoid is  A= BF *  \frac{AB+CD}{2} = 0.5  \sqrt{75}  * \frac{5+10}{2} = 18.75 \sqrt{3}   cm^{2}

3 0
3 years ago
PLS HELP!!<br><br> Given the diagram below, find the value of x.<br><br> The value of x is
Paha777 [63]

Answer:

44°

Step-by-step explanation:

180-30-14=136

180-136

44

7 0
3 years ago
Help please I need help
xz_007 [3.2K]

Answer:

21/29

Step-by-step explanation:

adjacent/hypotenuse

6 0
3 years ago
Find the absolute mean deviation for this set (-32,9,11,12).<br> A)0<br> B)8<br> C)16<br> D)32
Alex Ar [27]
I think 0 because 9+11+12=32
32+-32 or 32-32= 0
3 0
3 years ago
Read 2 more answers
Does anyone know how to do this?
docker41 [41]

Answer:

bone or necklace

Step-by-step explanation:

3 0
3 years ago
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