The first side of the square known as a ; 2nd side of the square is b \(\left(a>b\right)\)
\(\Rightarrow a^2+b^2=100\)
\(\Rightarrow a^2+b^2=36+64\)
\(\Rightarrow\begin{cases}a=8\\b=4\end{cases}\)
=> The perimeter = \(8.3+3.6+8-6=24+18-2=40\left(cm\right)\)
Given the point C on the segment AB such that the ratio of AC to CB is 3:7. Find the length of BC if the length of AB is 30 cm.
Answer: The length of BC is ...... cm
Toán tiếng anh nha mấy bạn .
(Toán Tiếng Anh): Subtract 100 from 7 times of a number A, the difference will be 68 more than 5 times the value of A. Find the value of A.
In triangle ABC, the measure of angle B is less than 1.5 times the measure of angle A and the measure of angle C is
less than 2.5 times the measure of angle A. What is the measure of angle A in degrees?
Answer: The measure of angle A is
The _______ of the people in our community with the government is very necessary. ( cooperate )
Toán tiếng Anh : A survey showed that of 120 secondary school students: 52 of them have a dog, 31 of them have a cat and 19 of them have both.
How many of the 120 students have neither a dog nor a cat? Answer: {} students
a) (x2y2 – xy + 2y)(x – 2y); b) (x2 – xy + y2)(x + y).
Let . Find the value of
.
Answer:
