Topic
Q:
18. în figura 25 sunt reprezentate dreptele paralele \( A B \) și \( C D \) și punctul \( E \), care
aparține semidreptei opuse semidreptei \( C B \). Punctele \( A \) și \( D \) sunt de aceeași
parte a dreptei \( B C, C D \) este bisectoarea unghiului \( A C E \) și \( \angle A B C=63^{\circ} \).
a) Determină măsura unghiului \( A C B \).
b) Demonstrează că \( \varangle B A C \equiv \varangle A B C \).
Q:
Similar polygons have corresponding angles that are \( \square \), and corresponding sides that are \( \square \).
Q:
What is the height of the cone with the radiuds) 3 in. and volume of 50 in.? Use 3.14 for \( \pi \).
\[ \begin{array}{l}50^{\prime}=\frac{1}{3}(3 \pi \times h) \\ 150-3 \pi \times h+1\end{array} \]
Q:
If two triangles are similar, the lengths of the corresponding \( \square \) are \( \square \) to the lengths of the corresponding sides.
Q:
Similar polygons are two polygons with the same \( \square \) but not necessarily the same \( \square \).
Q:
What is the height of the cone with the radius \( =3 \mathrm{in} \). and volume of \( 50 \mathrm{in}^{3} \) ? Use 3.14 for \( \pi \).
Q:
of the wheel. (Take \( \pi=\frac{22}{7} \) )
The radius of a circle is 7 cm . Find the circumference of the circle. Hence, find th
length of an arc of the circle which subtends an angle of 45 at the centre
Q:
One of the ancient stone pyramids in Egypt has a square base that measures 147 m on each side. The height is 102 m . What is the volume of the pyramid?
Q:
\( \left\{ \begin{array} { l } { \hat { a } = 4 x + 22 ^ { \circ } } \\ { \hat { r } = 4 x - 2 ^ { \circ } } \end{array} \right. \)
Q:
Para cada par de rectas realiza lo squiente
a) Encuentra su in tensecacion (si exíste
b) Determina si son perpendiculares o paralelas
c) si no son perpendiculares ni para lelas
calcula el angulo
astey \( x-y-7=0 x-y+11=0 \)
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