Answer:
Step-by-step explanation:
The
correct answer is in file attached
<span>we have
triangle RSTm∠R = 60, m∠S = 80 and m∠T=180-(80+60)=40</span>
<span>RS=4
triangle EFDm∠F = 60, m∠D = 40 and m∠E=180-(60+40)=80</span>
EF=4
Therefore
<span>The triangles
RST and
EFD are
congruents because they have two angles and the side common to them,
respectively, equal.
This is the theorem of ASA (angle-side-angle).</span>
Explication
Side common--------> RS=EF
<span>Angles RS------------- > m∠R =
60 m∠S =
80 </span>
<span>Angles EF------------- > m∠E =
80 m∠F = 60 </span>
<span>Angles RS and Angles EF are equals</span>
<span>
The segment which is congruent
to RT is FD, because angles of RT are 60 and 40, and angles of FD also are 60
and 40.</span>
Answer
About 112 students eat lunch 4th period
Step-by-step explanation:
250*.45 = 113
112.5 rounded is 112 because there can not be any half students
A shape is similar if corresponding angles are equal & if one is an enlargement of the other.
(I. E., one shape is twice as big as the other one.)
So, compare the lengths to find a common scale factor (of 2, for example, where you multiple by 2 to get a value & divide to get original value, from one shape to another.)
Hope this helps!