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Sladkaya [172]
3 years ago
7

Help me with this please !!!

Mathematics
1 answer:
gogolik [260]3 years ago
6 0
Answers are underlined in pink. Hope you can understand my writing! If anything is unclear, just ask!

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Proving trapezoid theorems Geometry
Artist 52 [7]

Answer:

ΔABD ≅ ΔACD by SAS, therefore;

\overline {BD} \cong \overline {CA} by CPCTC

Step-by-step explanation:

The two column proof is presented as follows;

Statement {}                   Reason

ABCD is a trapezoid {}  Given

\overline {BA} \cong \overline {CD}  {}                   Given

\overline {BC} \parallel \overline {AD}   {}                   Definition of a trapezoid

ABCD is an isosceles trapezoid  {}    Left and right leg are equal

∠BAD ≅ ∠CDA  {}          Base angle of an isosceles trapezoid are congruent

\overline {AD} \cong \overline {AD}   {}                  Reflexive property

ΔABD ≅ ΔACD   {}         By SAS rule of congruency

\overline {BD} \cong \overline {CA}   {}                  CPCTC

CPCTC; Congruent Parts of Congruent Triangles are Congruent

SAS; Side Angle Side rule of congruency

8 0
3 years ago
Read 2 more answers
Quadrilateral ABCD is similiar to quadrilateral EFGH. The lengths of the three longest sides in quadrilateral ABCD are 60 feet,
Ivan

Answer:

15 feet

Step-by-step explanation:

Quadrilateral ABCD has a scale facter of 2.5 over the quadrilateral EFGH. The order of ABCD is 60, 40, 30, and x, EFGH has y, z, 12, and 6.

6 times the scale factor of 2.5 is 15, the answer.

7 0
3 years ago
MAFS.5.NF.2.5a
Mademuasel [1]

C would be the answer

5 0
3 years ago
in the next several games , the pitcher threw a total of 384 pitches and used a fastball 240 times. What decimal should juanita
umka21 [38]

Divide the number of fast balls by the total number of pitches:

240 / 384 = 0.625

7 0
3 years ago
Is the correct pls help me!! I will mark you!!!
ivolga24 [154]

Answer:

-10 3

-9 4

-8 5

-3 10

Step-by-step explanation:

.........

5 0
3 years ago
Read 2 more answers
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